25717422 has 8 divisors (see below), whose sum is σ = 51434856. Its totient is φ = 8572472.

The previous prime is 25717421. The next prime is 25717429. The reversal of 25717422 is 22471752.

It is a sphenic number, since it is the product of 3 distinct primes.

25717422 is an admirable number.

It is a super-2 number, since 2×25717422² = 1322771588652168, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25717422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25717421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2143113 + ... + 2143124.

It is an arithmetic number, because the mean of its divisors is an integer number (6429357).

Almost surely, 2^25717422 is an apocalyptic number.

25717422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25717422 is a wasteful number, since it uses less digits than its factorization.

25717422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4286242.

The product of its digits is 7840, while the sum is 30.

The square root of 25717422 is about 5071.2347608842. The cubic root of 25717422 is about 295.1724434659.

The spelling of 25717422 in words is "twenty-five million, seven hundred seventeen thousand, four hundred twenty-two".